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  <title>Remove edges from the image</title>

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</div><hr /><div id="imagick.trimimage" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">Imagick::trimImage</h1>
  <p class="verinfo">(PECL imagick 2.0.0)</p><p class="refpurpose"><span class="refname">Imagick::trimImage</span> &mdash; <span class="dc-title">Remove edges from the image</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-imagick.trimimage-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>Imagick::trimImage</strong></span>
    ( <span class="methodparam"><span class="type">float</span> <code class="parameter">$fuzz</code></span>
   )</div>


  <p class="para rdfs-comment">
   Remove edges that are the background color from the image. 
   此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-imagick.trimimage-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">fuzz</code></em></dt>

     <dd>

      <p class="para">
       By default target must match a particular pixel color exactly.
       However, in many cases two colors may differ by a small amount.
       The fuzz member of image defines how much tolerance is acceptable
       to consider two colors as the same. This parameter represents the variation
       on the quantum range.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-imagick.trimimage-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>。
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-imagick.trimimage-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   错误时抛出 ImagickException。
  </p>
 </div>


  <div class="refsect1 examples" id="refsect1-imagick.trimimage-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3254">
    <p><strong>Example #1 Using <span class="function"><strong>Imagick::trimImage()</strong></span>:</strong></p>
    <div class="example-contents"><p>
     Trim an image, then display to the browser.
    </p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">/*&nbsp;Create&nbsp;the&nbsp;object&nbsp;and&nbsp;read&nbsp;the&nbsp;image&nbsp;in&nbsp;*/<br /></span><span style="color: #0000BB">$im&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">Imagick</span><span style="color: #007700">(</span><span style="color: #DD0000">"image.jpg"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;Trim&nbsp;the&nbsp;image.&nbsp;*/<br /></span><span style="color: #0000BB">$im</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">trimImage</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;Ouput&nbsp;the&nbsp;image&nbsp;*/<br /></span><span style="color: #0000BB">header</span><span style="color: #007700">(</span><span style="color: #DD0000">"Content-Type:&nbsp;image/"&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #0000BB">$im</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getImageFormat</span><span style="color: #007700">());<br />echo&nbsp;</span><span style="color: #0000BB">$im</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-imagick.trimimage-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="imagick.getquantumdepth.html" class="function" rel="rdfs-seeAlso">Imagick::getQuantumDepth()</a> - Gets the quantum depth</span></li>
    <li class="member"><span class="function"><a href="imagick.getquantumrange.html" class="function" rel="rdfs-seeAlso">Imagick::getQuantumRange()</a> - Returns the Imagick quantum range</span></li>
   </ul>
  </p>
 </div>


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